title: An operating microscope with higher magnification and higher resolution for cerebral aneurysm surgery: preliminary experience-technical note.
abstract: We describe a higher magnifying power operating microscope system to improve one method of high-quality microsurgical clipping for cerebral aneurysm in some cases. This higher magnification is achieved by a new lens design in the optical system, which makes the image of the object very clear at high magnifications (distinctiveness of 7 μm). This higher-resolution operating microscope system provides the surgeon with higher-magnified images (at the maximum of more than 30× magnifications as each working distance) in the operating field. The magnifications can be changed from low power (2.9×) to high power (62.0×) depending on the circumstances in a given procedure. We have used this operating microscope system on 11 patients with microsurgical clipping for cerebral aneurysms. Microsurgical treatment could be performed safely and precisely. All aneurysms were treated without any technical complications. We think that the use of this microscope would have potential benefits for microsurgical treatment for cerebral aneurysms because of better visualization.
authors.affiliation: Department of Neurosurgery, Stroke Center, Saiseikai Toyama Hospital.
authors.forename: Nobuhisa
authors.initials: N
authors.lastname: Matsumura
authors.forename: Takashi
authors.initials: T
authors.lastname: Shibata
authors.forename: Emiko
authors.initials: E
authors.lastname: Hori
authors.forename: Hironaga
authors.initials: H
authors.lastname: Kamiyama
authors.forename: Mariko
authors.initials: M
authors.lastname: Tani
authors.forename: Soushi
authors.initials: S
authors.lastname: Okamoto
authors.forename: Michiya
authors.initials: M
authors.lastname: Kubo
authors.forename: Yukio
authors.initials: Y
authors.lastname: Horie
authors.forename: Shunro
authors.initials: S
authors.lastname: Endo
authors.forename: Satoshi
authors.initials: S
authors.lastname: Kuroda
mesh_terms: D000368:Aged; D017542:Aneurysm, Ruptured / Q000150:complications / Q000601:surgery; D002543:Cerebral Hemorrhage / Q000209:etiology / Q000601:surgery; D002548:Cerebral Revascularization / Q000295:instrumentation*; D003399:Craniotomy; D004867:Equipment Design; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications / Q000601:surgery*; D008297:Male; D008853:Microscopy / Q000295:instrumentation*; D008875:Middle Aged; D012189:Retrospective Studies